The Christmas holiday is celebrated on December 25th, which is traditionally recognized as the birth date of Jesus Christ. The exact date of Jesus' birth is not known, but it is believed that he was born in the spring or summer. The date of December 25th was first officially recognized as the day of Christmas by the early Church in the 4th century AD. The celebration of Christmas was originally a religious holiday, but over time it has become a cultural and secular event as well. Today, it is celebrated around the world with a variety of traditions and customs.